Clutch for speed-regulators.



'H. L. BUSTA-TER. CLUTCH FOB SPEED BEGULATOBS. l APPLIUATIoNrILnD 1120.1, 1910. Bnnnwnn JAN. 1s. 1912. 1,018,476.

Patented Feb. 27, 1912.

lI /H M W ====IW l is a transverse sectional view of sto 'Hiaiiaiiirziicr Il.. Bos'rarna, or CHICAGO, ILLINois.

ACLUTCH FOB SPEED-REGULATOBS.

1,018,476. Application illed December 1, 1810, Serial No.

To ,all whofni 'it may concern:

Be it known that I, HERBERT L. BosTA'rER,

.a citizen of. the United States, residin at' Chicago, in the county of Cook and tate of Illinois, have invented new and useful Improvements in Clutches, More Particularlyl Designed as Speed-Regulators for v,Electric Generators, of which the following is a specification. j

. M linvention relates' to clutches, more particularly designed as lspeed regulators for electric generators, and has for its object certain improvements in the const-ruction of the s'ame as will be hereinafter more definitely pointed out and claimed.

In the accompanying drawing; Figure 1 my improved device. Fig. 2 has a sectional view taken at a right angle to Fig. 1 and on the line 2-2 thereof. Fig. 3 is a detail pers ective view of the hub and sleeves for hol ing' the clutch shoes. Fig. 4 is a detail tra-nsversel sectional view through one of 'the clutch shoes.

In the said drawing thje reference numeral 1 denotes a drive wheel, which may be varied in diameter to suit driving conditions, actuated from any suitable source of power, and keyed to a sleeve 2 formed integral with the clutchshell 3, said clutch shell and sleeve 2 being ada ted to freely rotate u on the armature or riven shaft 4. Keye to shaft 4 is a member comprising a Ahub 5A h aving formed -integral therewith oppositely disposed sleeves or hollow arms 6,

each having at its outer end a pair of ears 7 as shown, which project in o posite directions. Longitudinally movab e in each of said sleeves 6 is a stem 8 of the clutch shoe 9, said stems being normally ressed outward by springs 10 'and slott at 11 and rovided with cross-pins 12.`. Extending into said slots and in contact with the pins 12 are the inner ends of levers 13 pivoted at 14 in the ears 7, and having mounted ad- ]'ustably thereon the weights 15.

Thel clutch shell closed by means of a plate 16 in screw threaded engagementtherewith, and in use is filled with oil or an other liquid or semi-liquid lubricant.

o ration when power is applied to rotate t e drive wheel 1, this motion is coinmunicat'ed to clutch shell 8 and as the clutch shoes 9 are noi'mallivl forced' into contact with said clutch sh throughy springs 10 Speoincation e! Letters Patent.

Patented Feb. 27, 1912.v

595,063. Renewed January 15, 1912. Serial No. 071,292.

the movement will be imparted to shaft 4, and through it to the electric generator. Should the s eed of the driving mechanism increase eyond prescribed limits, the

centrifugal action will cause the free ends of arms 13 to throw outward on their pivots 14, and their inner ends will through contactwith cross-pins 12` force the clutch shoes 9 inward away from contact with the clutch shell 3and this position will be maintained until the speed ofA the driving wheel decreases.

The oil filling the clutch vshell 3 not only lubricates the parts, but also performs the more im ortant function of acting in the nature o la dash pot in action with the arms 13, it being obvious that the centrifugal movement of' said arms will be checked by the oil, and the effect of the same willbe' to stead the action of the clutch, preventing sud en or jerky movement of the clutch shoes on the clutch shell. The result is a wavelike variation in the current of ythe generator instead of jerky and abrupt changes. v

It will be understood that the clutch lcan be driven by utilizing the periphery of the shell 3, instead o f providing an extra drive wheel as shown.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is A clutch embod ing a driving and a driven member, a c osed casin mounted to rotate ".ponvs'aid driven mem r, a clutch member secured to said driven member and comprising a hub, oppositely disposed sleeves having voppositely .extending ears at their outere'nds secured to said hub, clutchv shoes rovided with slotted stemswhichproject into said sleeves, pins extendin across said slots, and s rings within sai sleeves for forcing saidp clutch shoes into enga ment with said casing, and levers pivote inter-.p

my hand in presence of two subscribing 106 witnesses.

HERBERT L, BOSTATER.l Witnesses:

Hanni F. BnowN, Samui Summa. 

